It is illegal to stand around any building without a good reason to be there.
 
The land of 10,000 lakes declares mosquitos a publicnuisance.
 
Citizens may not enter Wisconsin with a chicken on their head.

Oral sex is prohibited.

All bathtubs must have feet.

A person may not cross state lines with a duck atop his head.

It is illegal to sleep naked.

All men driving motorcycles must wear shirts.